Which of the following statements is wrong about the reaction.4CrO5+6H2SO4→ 2Cr2SO43+6H2O+7O2

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It is disproportionation reaction.

lt is a an intramolecular redox reaction.

Cr acts as an oxidant, whereas O acts as a reductant.

CrO5 acts as oxidant and reductant both.

answer is A.

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Detailed Solution

It changes to +3 in Cr2(SO4)33e−+Cr6+⟶Cr3+ (reduction) (acts as oxidant)Whereas O in CrO5 changes to O22O⊝⟶O2+2e− (oxidation) (acts of reductant)So, CrO5 acts as oxidant and reductant both.and also it is intramolecular redox reaction since in CrO5, both Cr and O undergoes oxidation and reduction reaction.

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